FPD310

High Sensitivity Fast PIN Photodetector

K E Y S P E C I F I C AT I O N S■ Ultrafast Response 1.5 GHz■ Spectral Sensitivity from400-1000 nm or 950-1650 nm■ 3 dB Bandwidth from 5 MHz -1 GHz■ Extremely short Rise Times below
0.5 nsA P P L I C AT I O N S■ Detection of Fast Laser Pulses in

the Near Infrared or Visible Range■ Detection of Low Light LevelSignals■ Radio Frequency and Pulse Shape
Extraction of Laser Light Sources■ Heterodyne Laser Beat SignalDetection

The high sensitivity ultrafast PIN photodetector FPD310 product family is optimized
for high gain, high bandwidths, extremely short rise times and high signal-to-noiseratio. These photodetectors are easy-to-use Si- or InGaAs-PIN photodiode packages with an integrated high gain, low noise RF amplifier.
The gain can be switched between two fixed settings (0 dB and 20 dB attenuation),
which allows an optimal performance for the user’s application.
Models for both visible and near infrared range are available, both with either freespace or fiber coupled optical input. The compact design of these detectors allows
for easy OEM integration. Included with each amplified photodetector is a low
noise power supply, which features a universal AC input.
The units are especially recommended for applications like pulse shape and lownoise radio frequency extraction.

F E AT U R E S■ OEM Integration■ Fiber Coupled or Free Space Optical Input■ Two switchable Gain Settings■ Integrated Low Noise Radio Frequency Amplifier■ Easy-to-use Package■ Low Noise Power Supply includedFPD310
Response to a pulse train with sub 250 fs pulses at 1560 nm and 10 µW optical average power:
Frequency Characteristics

Time Characteristics

Frequency Characteristics-10Signal [norm.]

Signal [dBm]-20-30-40-50-60-70-80-900200

400

600

Frequency [MHz]800

Rise Time

1000

1.0

1.0

0.8

0.8

Signal [norm.]

0Rise TimeTime Characteristics

0.6
0.4
0.2

0.6
0.4
0.2

0.0

0.0-0.2-0.2-4-20

Time [ns]24-0.20.00.2Time [ns]

0.4

0.6

0.8

FPD310High Sensitivity Fast PIN Photodetector
S P E C I F I C AT I O N S
FPD310-FC-VIS-FS-VIS-FC-NIR-FS-NIR

Detector Type
Optical Input

Sifiber coupled: FC/PC
connectorSi
free space

InGaAsfiber coupled: SMF28
pigtail with FC/APC

InGaAsfree space

Spectral Range
Saturation Limit
Damage Threshold
Detector Diameter
Frequency Range
3 dB BandwidthRise Time
Max. Gain

400-1000 nm<200 µW
2 mW
0.25 mm
1-1500 MHz
5-1000 MHz
0.5 ns2 x 104 VPeak-Peak/WInput

400-1000 nm<200 µW
2 mW
0.4 mm
1-1500 MHz
5-1000 MHz
0.5 ns2 x 104 VPeak-Peak/WInput

950-1650 nm<200 µW
2 mW
1-1500 MHz
5-1000 MHz
0.5 ns2 x 104 VPeak-Peak/WInput

950-1650 nm<200 µW
2 mW
0.08 mm
1-1500 MHz
5-1000 MHz
0.5 ns2 x 104 VPeak-Peak/WInput

Dark State Noise Level not integrated -100 dBm /√Hz/(up to 5 MHz / 5-1500 MHz)
-130 dBm /√Hz
NEP (calculated)
25.5 pW/√Hz
Output Impedance
50 W
Output Coupling
AC~1VppOutput Signal-100 dBm /√Hz/-130 dBm /√Hz
24.0 pW/√Hz
50 W
AC~1 Vpp-100 dBm /√Hz/-130 dBm /√Hz
12.0 pW/√Hz50 W
AC~1 Vpp-100 dBm /√Hz/-130 dBm /√Hz
14.1 pW/√Hz50 W
AC~1 Vpp

Output Connector
Supply Voltage
Max.Current Consumption
Operating Temperature
Storage Temperature
Storage Humidity (RH= relativ humidity)
Device Dimensions

SMA female+12 V
100 mA
10-40 °C
-20 to +85 °C
10-90 % RH
60 x 50 x 20 mm³

SMA female+12 V
100 mA
10-40 °C
-20 to +85 °C
10-90 % RH
60 x 50 x 20 mm³

SMA female+12 V
100 mA
10-40 °C
-20 to +85 °C
10-90 % RH
60 x 50 x 20 mm³

SMA female+12 V
100 mA
10-40 °C
-20 °C to +85 °C
10-90 % RH
60 x 50 x 20 mm³

O R D E R I N G I N F O R M AT I O N
Product CodeFPD310-FC-VIS
Price
2050 EURFPD310-FS-VIS
2050 EURFPD310-FC-NIR
2050 EURFPD310-FS-NIR
2050 EUR

Prices and specifications are subject to change without notice. Custom modifications are available, please inquire.

Menlo Systems GmbH
T+49 89 189 166 0
sales@menlosystems.com

www.menlosystems.com

Menlo Systems US
T+1 303 635 6406
ussales@menlosystems.com

Menlo Systems Japan
T+81 907 409 20 21
jpsales@menlosystems.com

Menlo Systems China
T+86 21 6071 1678
chinasales@menlosystems.comD-FPD310-EN 16/07/2024